Tolerance Command: The suggested text font is romans.shx. These practices correspond with the ASME Y14.2M standard, Line Conventions and Lettering.

Attaching Feature Control Frame to Leaders: The QLEADER command automatically attached and associated with a leader. This is the mosr effective technique for creating a feature control frame and other GD&D symbols, such as datum feature symbols.

Using the QLEADER Command to Insert GD&T Feature Frame: QLEADER —» Enter —» S (Leader Settings) —» Annotation (Tolerance) —» Leader Line & Arrow (Straight —» Number of Points = 2 to select the start and enpoints of the leader line —» Arrowhead = None —» Angle Constraints: First Segment = Any angle —» Second Segment = Any angle) —» OK —» Click to place the first point of Feature Frame —» Ortho mode = Off (hold down Shift) —» Click to place the second point of Feature Frame —» Fill out the GD&T Feature Frame: Height = Projected tolerance zone heigh —» OK to place.

Ortho Mode On/Off —» F8 — Constrains (bị hạn chế) cursor movement to the horizontal or vertical direction. Ortho mode is used when you specify an angle or distance by means of two points using a pointing device. In Ortho mode, cursor movement is constrained to the horizontal or vertical direction relative to the UCS. Occasionally, Ortho Mode and object snaps interfere with drafting in AutoCAD. Disabling them as to keeps them from being a problem.